• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Improved Phase Performance for Rotman Lens
【24h】

Improved Phase Performance for Rotman Lens

机译：改进的Rotman镜头相位性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Rotman lenses are used to obtain multiple beams from a single array. Although the beams produced by the feed antennas at focal points have no path length errors, the beams produced by feed antennas at off focal points may have large path length errors. These path length errors cause deterioration in the multiple beams. In this article, two novel methods are introduced to obtain feed curves which reduce the path length errors of off focal feed points significantly, compared with the commonly used circular and elliptical feed curves. The first method obtains feed curve points based on having zero path length error at three chosen points of the radiating array for each beam direction. The second method uses the particle swarm optimization method for obtaining optimum feed points for each beam direction. The results show that there is a very significant drop in the level of the maximum path length errors (in the order of about 1:4).
机译：Rotman透镜用于从单个阵列获得多个光束。尽管馈电天线在焦点处产生的波束没有路径长度误差，但馈电天线在非焦点处产生的波束可能具有较大的路径长度误差。这些路径长度误差导致多个光束的劣化。在本文中，介绍了两种新颖的方法来获得进给曲线，与常用的圆形和椭圆进给曲线相比，该曲线可以显着减少离焦进给点的路径长度误差。第一种方法基于在每个波束方向上在辐射阵列的三个选定点处具有零路径长度误差而获得馈电曲线点。第二种方法使用粒子群优化方法来获得每个光束方向的最佳馈电点。结果表明，最大路径长度误差的水平有非常显着的下降（大约为1：4）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号